RACER X High Performance Front Pump Seal© : Racer X proprietary seal compound material. Consider this a must do when replacing the torque converter. High performance improved sealing to prevent leaks and transmission damage from fluid loss in all operating conditions. Vastly improved high heat and cold weather resistance. Replaces the leak-prone O.E.M. and aftermarket front pump seal. Replaces weep and leak prone viton® seals for better leak-resistant performance in both hot and cold operating conditions. A RACER X exclusive product.